CN107742783B - Spiral compression spring sheet type grounding wire conductor terminal clamp - Google Patents
Spiral compression spring sheet type grounding wire conductor terminal clamp Download PDFInfo
- Publication number
- CN107742783B CN107742783B CN201710802139.1A CN201710802139A CN107742783B CN 107742783 B CN107742783 B CN 107742783B CN 201710802139 A CN201710802139 A CN 201710802139A CN 107742783 B CN107742783 B CN 107742783B
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- spring piece
- spring
- transmission crank
- shell
- wire clamp
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- 239000004020 conductor Substances 0.000 title claims abstract description 48
- 230000006835 compression Effects 0.000 title claims abstract description 45
- 238000007906 compression Methods 0.000 title claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 52
- 238000006073 displacement reaction Methods 0.000 claims abstract description 14
- 230000003068 static effect Effects 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
The invention relates to a grounding wire device, in particular to a spiral compression spring sheet type grounding wire conductor terminal clamp. The spiral compression spring sheet type grounding wire conductor terminal wire clamp comprises a wire clamp shell, a wire clamp cover shell and a screw device, wherein the wire clamp cover shell is combined with the wire clamp shell, the screw device is arranged on the wire clamp shell, and the wire clamp shell comprises a clamping part with a U-shaped structure and a transmission part connected to one side of the U-shaped structure; a first spring component is arranged on one side of the inside of the clamping part, and a second spring component is arranged on the other side of the inside of the clamping part; the top of the clamping part is provided with a control device for controlling the second spring assembly, the transmission part is provided with a displacement amplifier for pressing the first spring assembly, and the displacement amplifier is connected with the screw device. The invention has simple structure, realizes firm clamping of the conductor, simultaneously has convenient operation of the spiral compression spring sheet type grounding wire end wire clamp and improves the working efficiency.
Description
Technical Field
The invention relates to a grounding wire device, in particular to a spiral compression spring sheet type grounding wire conductor terminal clamp.
Background
The short-circuit grounding wire is the most common safety device in the transformer substation, the conductor end wire clamps are respectively lapped on the three-phase conductors, the three-phase short circuit of the power failure equipment is realized through the short circuit wire, and then the short-circuit grounding wire is led to the grounding electrode, so that the safety of constructors in the protection range is realized.
At present, a conductor terminal clamp of a short-circuit grounding wire for a station is mainly divided into two operation modes of screw fastening and double-spring compression. For spring compression, an operator can directly lap the wire clamp on the conductor, the conductor can be compressed by the deformation pressure of the double springs when pulling downwards, and the conductor can be separated when pushing upwards, so that the operation is very convenient, but the connection between the spring piece and the conductor is unstable, the wire clamp is easy to slide off from the conductor under the condition of large external force interference, and meanwhile, the double spring is easy to age; for screw tightening, the rotary motion of the insulating rod is changed into the vertical linear motion of the clamping piece through screw threads, so that the clamp is tightly pressed on a conductor, the reliability is high, the connection is stable, but the rotary motion of the insulating operation rod is changed into the vertical linear motion of the clamping piece through screw threads, the clamping force is ensured at a sacrifice speed, and a operator is required to screw a plurality of circles in a reciprocating manner. Because the opening of the power clamp is large, a large amount of ineffective travel is caused. In addition, the installation positions of the power equipment are all at high positions, so that the installation position of the temporary grounding wire is high, the operation rod of the grounding wire is long, the grounding copper wire is heavy, and the operation can be carried out smoothly with great effort; the operator needs to stand on the insulating ladder and wear the insulating glove, lifts the hands to rotate for tens of circles, wastes time and labor, consumes a great deal of physical power, and is easy to lose balance and fall.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a spiral compression spring sheet type grounding wire conductor terminal clamp.
In order to solve the technical problems, the invention adopts the following technical scheme: the spiral compression spring sheet type grounding wire conductor terminal wire clamp comprises a wire clamp shell, a wire clamp cover shell and a screw device, wherein the wire clamp cover shell is combined with the wire clamp shell, the screw device is arranged on the wire clamp shell, and the wire clamp shell comprises a clamping part with a U-shaped structure and a transmission part connected to one side of the U-shaped structure; a first spring component is arranged on one side of the inside of the clamping part, and a second spring component is arranged on the other side of the inside of the clamping part; the top of the clamping part is provided with a control device for controlling the second spring assembly, the transmission part is provided with a displacement amplifier for pressing the first spring assembly, and the displacement amplifier is connected with the screw device.
The invention relates to a spiral compression spring sheet type grounding wire conductor terminal clamp, and the arrangement of a displacement amplifier solves the problem that the slow rotation process of a screw device is amplified into a quick vertical stroke of a vertical compression shaft; the vertical compression shaft is abutted against the movable fulcrum of the first spring piece, so that the compression of the first spring piece can be realized, and the conductor is better clamped; the control device can be used for compressing the second spring piece, so that the conductor is better compressed.
Preferably, the displacement amplifier is provided with a first transmission crank and a vertical compression shaft which are connected in sequence. The first transmission crank and the vertical compression shaft can quickly convert the rotation process of the screw device into the vertical process of the vertical compression shaft, and the slow rotation process is amplified into the quick vertical linear process, so that the working efficiency is improved.
Preferably, the first transmission crank consists of conductor components which are mutually angled, and a groove-shaped through hole structure which is movably connected with the screw device is arranged on the first transmission crank; the first transmission crank is provided with a first fulcrum, the first fulcrum is hinged with the wire clamp shell, and the other end of the first transmission crank is hinged with the vertical compression shaft. The groove-type through hole structure arranged on the first transmission crank can ensure that the screw device is movably connected with the first transmission crank, the screw device pushes the transmission crank to rotate around the first pivot in the screw process of the screw device, meanwhile, the screw device slides in the groove-type through hole structure in the first transmission crank, and the vertical compression rod moves vertically and forwards under the pushing of the first transmission crank, so that the first spring piece is pushed to compress.
Preferably, the vertical pressing shaft is of a T-shaped structure, a pressing shaft connected with the vertical pressing shaft is arranged on the vertical pressing shaft, and the pressing shaft is abutted against the first spring assembly. This is provided to facilitate better contact of the vertical compression shaft with the first spring assembly, thereby compressing the first spring assembly.
Preferably, the first spring assembly is provided with a first spring piece, the first spring piece is of a convex sheet structure, and the convex sheet structure of the first spring piece is arranged outside the clamping part of the U-shaped structure; one end of the first spring piece is provided with a first spring piece static fulcrum, and the other end of the first spring piece is provided with a first spring piece movable fulcrum. The first spring piece is arranged to be a convex sheet structure, so that the convex sheet structure deforms to the outside of the clamping part under the extrusion of the vertical compression shaft, the conductor can be firmly clamped, the static supporting point of the first spring piece is used for fixing the first spring piece, and the movable supporting point of the first spring piece can keep moving under the abutting of the vertical compression shaft, so that the first spring piece deforms under the action of pressure, and a powerful clamping force is formed on the conductor.
Preferably, the first spring static fulcrum is fixedly connected with the wire clamp shell, and the first spring piece movable fulcrum is abutted against the pressing shaft. The first spring piece movable fulcrum is abutted with the pressing shaft, so that the first spring piece movable fulcrum can enable the first spring piece to be compressed and deformed towards the convex sheet-shaped structure under the abutting of the vertical pressing shaft, and the conductor clamped in the clamping part of the U-shaped structure is firmly clamped.
Preferably, the control device on be provided with the top switch, the top switch links to each other with second spring assembly, second spring assembly is provided with second transmission crank and the second spring leaf that links to each other with the second transmission crank, the second spring leaf is convex sheet structure, the convex sheet structure of second spring leaf sets up in the outside of the clamping part of U type structure. The second transmission crank consists of conductor components which are mutually angled, one end of the second transmission crank is hinged with the top switch, and the other end of the second transmission crank is fixedly connected with one end of the second spring piece; the bending part of the second transmission crank is provided with a second fulcrum, and the second fulcrum is hinged with the wire clamp shell. The arrangement of the top switch can be that the conductor end clamp of the spiral compression spring sheet type grounding wire is hung on the conductor, and the conductor end clamp of the spiral compression spring sheet type grounding wire can touch the top switch due to the action of gravity, so that a second transmission crank connected with the top switch at the top rotates around a second pivot, and the second spring sheet deforms towards the direction of the convex sheet structure, thereby forming an effective clamping effect on the conductor clamped in the first spring sheet and the second spring sheet.
Preferably, one end of the second spring piece is provided with a second spring piece movable fulcrum, the other end of the second spring piece is provided with a second spring piece static fulcrum, the second spring piece movable fulcrum is connected with a second transmission crank, and the second spring piece static fulcrum is fixedly connected with the wire clamp shell. The second spring piece movable supporting point is arranged, so that the convex sheet-shaped structure of the second spring piece is compressed and deformed towards the outside of the clamping part of the U-shaped structure under the action of the second spring piece movable supporting point.
Preferably, the wire clamp shell is provided with a short-circuit wire drainage clamp, one side of the first transmission crank, which is close to the screw rod device, is provided with a limiter, and the screw rod device is provided with an insulating handle. The arrangement of the short-circuit line drainage clamp is to connect the ground wire with the conductor end clamp of the spiral compression spring sheet type ground wire, one side of the first transmission crank, which is close to the screw rod device, is provided with a limiter, so that when an operator rotates the screw rod device before the conductor is separated from the conductor, the screw rod device is limited when the screw rod device rotates to a certain degree, the excessive rotation of the screw rod device is prevented, the time waste is avoided, and meanwhile, the arrangement of the insulating handle on the screw rod device can prevent unexpected electric shock accidents from occurring in the process of rotating the screw rod, and the safety of the operator for operating the screw rod device is ensured.
Compared with the prior art, the invention has the beneficial effects that: the invention avoids a large amount of invalid strokes of a pure screw type for the coil compression spring sheet type grounding wire conductor terminal clamp, the arrangement of the displacement amplifier can further reduce the number of turns of a rotating screw device of an operator, and the problem of low operation efficiency of the original rotating fastening type wire clamp is solved; meanwhile, the second spring assembly can clamp the conductor secondarily through the control of the top switch, and the displacement amplifier is connected with the first spring assembly to clamp the conductor again through the first spring piece, so that the problem that the double-spring wire clamp is unreliable is solved. The first spring piece and the second spring piece adopt the setting of convex lamellar structure can guarantee the elastic tension of first spring piece and second spring piece on the one hand, on the other hand can increase the area of contact between first spring piece, second spring piece and the conductor, increases conductive property.
Drawings
Fig. 1 is a structural view of a coil compression spring plate type ground wire conductor terminal clip of the present invention.
Detailed Description
The invention is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Examples
Fig. 1 is a first embodiment of a coil-hold spring sheet type ground wire conductor terminal clamp of the present invention, including a clamp housing 1, a clamp cover housing covered with the clamp housing 1, and a screw device 2 provided at the clamp housing 1, the clamp housing 1 including a clamping portion 3 having a U-shaped structure and a transmission portion 4 connected to one side of the clamping portion 3 having the U-shaped structure; a first spring assembly 5 is arranged on one side of the inside of the clamping part 3, and a second spring assembly 6 is arranged on the other side of the inside of the clamping part 3; the top of the clamping part 3 is provided with a control device 7 for controlling the second spring assembly 6, and the transmission part 4 is provided with a displacement amplifier 8 for pressing the first spring assembly 5, and the displacement amplifier 8 is connected with the screw device 2.
Wherein, a first transmission crank 41 and a vertical compression shaft 42 which are connected in sequence are arranged in the displacement amplifier 8.
In addition, the first transmission crank 41 is composed of conductor components with angles, and a groove-shaped through hole structure 411 which is movably connected with the screw device 2 is arranged on the first transmission crank 41; the first transmission crank 41 is provided with a first fulcrum 412, the first fulcrum 412 is hinged with the wire clamp shell 1, and the other end of the first transmission crank 41 is hinged with the vertical compression shaft 42.
The vertical compression shaft 42 has a T-shaped structure, and a compression shaft 421 connected to the vertical compression shaft is disposed on the vertical compression shaft 42, and the compression shaft 421 abuts against the first spring assembly 5.
In addition, the first spring assembly 5 is provided with a first spring piece 51, the first spring piece 51 is of a convex sheet-shaped structure, and the convex sheet-shaped structure of the first spring piece 51 is arranged outside the clamping part of the U-shaped structure; one end of the first spring piece 51 is provided with a first spring piece static fulcrum 511, and the other end of the first spring piece 51 is provided with a first spring piece movable fulcrum 512.
The first spring leaf static fulcrum 511 is fixedly connected with the wire clamp shell 1, and the first spring leaf moving fulcrum 512 is abutted against the pressing shaft 421.
In addition, the control device 7 is provided with a top switch 71, the top switch 71 is connected with a second spring assembly 6, the second spring assembly 6 is provided with a second transmission crank 61 and a second spring piece 62 connected with the second transmission crank 61, the second spring piece 62 is of a convex sheet structure, and the convex sheet structure of the second spring piece 62 is arranged outside the clamping part 3 of the U-shaped structure
Wherein the second drive crank 61 is composed of conductor members at an angle to each other; one end of the second transmission crank 61 is hinged with the top switch 71, and the other end of the second transmission crank 61 is fixedly connected with one end of the second spring piece 62; the bent portion of the second driving crank 61 is provided with a second supporting point 611, and the second supporting point 611 is hinged with the wire clamp housing 1.
In addition, one end of the second spring piece 62 is provided with a second spring movable supporting point 621, the other end of the second spring piece 62 is provided with a second spring piece static supporting point 622, the second spring piece movable supporting point 621 is connected with the second transmission crank 61, and the second spring piece static supporting point 622 is fixedly connected with the wire clamp shell 1.
Wherein, be provided with the short-circuit line drainage in the fastener shell 1 and press from both sides 9, one side that first drive crank 41 is close to screw rod device 2 is provided with stopper 10, is provided with insulating handle 11 on the screw rod device 2.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (6)
1. The utility model provides a spiral hold-down spring piece formula earth connection conductor terminal fastener, includes fastener shell (1), with fastener shell (1) lid and set up screw rod device (2) at fastener shell (1), its characterized in that: the wire clamp shell (1) comprises a clamping part (3) with a U-shaped structure and a transmission part (4) connected to one side of the U-shaped structure; a first spring assembly (5) is arranged on one side of the inside of the clamping part (3), and a second spring assembly (6) is arranged on the other side of the inside of the clamping part (3); a control device (7) for controlling the second spring assembly (6) is arranged at the top of the clamping part (3), a displacement amplifier (8) for pressing the first spring assembly (5) is arranged in the transmission part (4), and the displacement amplifier (8) is connected with the screw device (2); a first transmission crank (41) and a vertical compression shaft (42) which are sequentially connected are arranged in the displacement amplifier (8); the control device (7) is provided with a top switch (71), the top switch (71) is connected with a second spring assembly (6), the second spring assembly (6) is provided with a second transmission crank (61) and a second spring piece (62) connected with the second transmission crank (61), the second spring piece (62) is of a convex sheet structure, and the convex sheet structure of the second spring piece (62) is arranged outside a clamping part (3) of the U-shaped structure; the first spring assembly (5) is provided with a first spring piece (51), the first spring piece (51) is of a convex sheet-shaped structure, and the convex sheet-shaped structure of the first spring piece is arranged outside the clamping part of the U-shaped structure; one end of the first spring piece (51) is provided with a first spring piece static fulcrum (511), and the other end of the first spring piece (51) is provided with a first spring piece movable fulcrum (512); the first spring piece static fulcrum (511) is fixedly connected with the wire clamp shell (1), and the first spring piece movable fulcrum (512) is abutted against the pressing shaft (421).
2. The coil compression spring plate type ground wire conductor terminal clamp according to claim 1, wherein: the first transmission crank (41) consists of conductor components which are mutually angled, and a groove-shaped through hole structure (411) which is movably connected with the screw device (2) is arranged on the first transmission crank (41); the first transmission crank (41) is provided with a first fulcrum (412), the first fulcrum (412) is hinged with the wire clamp shell (1), and the other end of the first transmission crank (41) is hinged with the vertical compression shaft (42).
3. The coil compression spring plate type ground wire conductor terminal clamp according to claim 1, wherein: the vertical compression shaft (42) is of a T-shaped structure, the compression shaft (421) connected with the vertical compression shaft (42) is arranged on the vertical compression shaft (42), and the compression shaft (421) is abutted against the first spring assembly (5).
4. The coil compression spring plate type ground wire conductor terminal clamp according to claim 1, wherein: the second transmission crank (61) is composed of conductor components with angles; one end of the second transmission crank (61) is hinged with the top switch (71), and the other end of the second transmission crank (61) is fixedly connected with one end of the second spring piece (62); the bending part of the second transmission crank (61) is provided with a second fulcrum (611), and the second fulcrum (611) is hinged with the wire clamp shell (1).
5. The coil-on spring blade ground wire conductor end clip of claim 4, wherein: one end of the second spring piece (62) is provided with a second spring piece movable supporting point (621), the other end of the second spring piece (62) is provided with a second spring piece static supporting point (622), the second spring piece movable supporting point (621) is connected with the second transmission crank (61), and the second spring piece static supporting point (622) is fixedly connected with the wire clamp shell (1).
6. The coil compression spring plate type ground wire conductor terminal clamp according to claim 1, wherein: the novel wire clamp is characterized in that a short-circuit wire drainage clamp (9) is arranged in the wire clamp shell (1), a limiter (10) is arranged on one side, close to the screw rod device (2), of the first transmission crank (41), and an insulating handle (11) is arranged on the screw rod device (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710802139.1A CN107742783B (en) | 2017-09-07 | 2017-09-07 | Spiral compression spring sheet type grounding wire conductor terminal clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710802139.1A CN107742783B (en) | 2017-09-07 | 2017-09-07 | Spiral compression spring sheet type grounding wire conductor terminal clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107742783A CN107742783A (en) | 2018-02-27 |
| CN107742783B true CN107742783B (en) | 2024-05-14 |
Family
ID=61235186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710802139.1A Active CN107742783B (en) | 2017-09-07 | 2017-09-07 | Spiral compression spring sheet type grounding wire conductor terminal clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107742783B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649357A (en) * | 2018-05-25 | 2018-10-12 | 广东电网有限责任公司 | A kind of bayonet type earthing clamp |
| CN108832329A (en) * | 2018-09-29 | 2018-11-16 | 广东电网有限责任公司 | A kind of earthing clamp component |
| CN111129798A (en) * | 2019-07-08 | 2020-05-08 | 国网河南省电力公司新郑市供电公司 | Wire clamp for grounding wire arranged at copper-aluminum transition wire clamp of transformer and disconnecting link lead |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR078998A1 (en) * | 2010-08-27 | 2011-12-21 | Poletti Orlando Aldo | LAMP HOLDER TO FIX LAMPS BY PLUG AND OR THREADED |
| CN203481419U (en) * | 2013-08-17 | 2014-03-12 | 国家电网公司 | Low-voltage ground clamp used for compact electrical structure |
| CN104767051A (en) * | 2015-04-16 | 2015-07-08 | 国家电网公司 | Method for disassembling and assembling grounding wire through self-lockable grounding wire clamp |
| CN206134957U (en) * | 2016-08-23 | 2017-04-26 | 六盘水师范学院 | Quick rotatory formula portable earthing device that screws up |
| CN207282744U (en) * | 2017-09-07 | 2018-04-27 | 广东电网有限责任公司江门供电局 | A kind of spiral compression Reed type wire clip for conductor end of earth wire |
-
2017
- 2017-09-07 CN CN201710802139.1A patent/CN107742783B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR078998A1 (en) * | 2010-08-27 | 2011-12-21 | Poletti Orlando Aldo | LAMP HOLDER TO FIX LAMPS BY PLUG AND OR THREADED |
| CN203481419U (en) * | 2013-08-17 | 2014-03-12 | 国家电网公司 | Low-voltage ground clamp used for compact electrical structure |
| CN104767051A (en) * | 2015-04-16 | 2015-07-08 | 国家电网公司 | Method for disassembling and assembling grounding wire through self-lockable grounding wire clamp |
| CN206134957U (en) * | 2016-08-23 | 2017-04-26 | 六盘水师范学院 | Quick rotatory formula portable earthing device that screws up |
| CN207282744U (en) * | 2017-09-07 | 2018-04-27 | 广东电网有限责任公司江门供电局 | A kind of spiral compression Reed type wire clip for conductor end of earth wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107742783A (en) | 2018-02-27 |
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